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A Certain Scientific Railgun reading order

Updated October 2026 · 7 entries · release order

Short answer

Read A Certain Scientific Railgun in release order: A Certain Scientific Railgun.

1

main story entries

180

chapters

6

optional entries

6 optional entries (recaps, side stories, specials) are marked below. Souyaku Toaru Majutsu no Index is ongoing now.

Release order

  1. 1
    A Certain Magical IndexExtra · optional

    Light Novel · 2004 · 132 ch · score 4.1/5

  2. 2
    A Certain Scientific RailgunMain story

    Manga · 2007 · 180 ch · score 4.0/5

  3. 3
    A Certain Magical Index SSSide story · optional, after A Certain Magical Index

    Light Novel · 2007 · 28 ch · score 3.7/5

  4. 4
    Toaru Kagaku no Railgun SSSide story · optional, after A Certain Scientific Railgun

    Light Novel · 2009 · 8 ch · score 3.4/5

  5. 5
    A Certain Magical Index NTExtra · optional

    Light Novel · 2011 · 183 ch · score 4.3/5

  6. 6
    A Certain Scientific Railgun: Astral BuddySide story · optional, after A Certain Scientific Railgun

    Manga · 2017 · 31 ch · score 3.9/5

    Read onKadocomi

  7. 7
    Souyaku Toaru Majutsu no Index OngoingExtra · optional

    Light Novel · 2020 · score 4.1/5

How long is A Certain Scientific Railgun?

PartEntriesChapters
Main story1180
Everything released7562

Where to read A Certain Scientific Railgun

  • Kadocomi 1 of 7 entries

Services and regions change; each entry above links its own official pages.

Is A Certain Scientific Railgun finished?

No. Souyaku Toaru Majutsu no Index is being published right now.

Do I need to read the A Certain Scientific Railgun side stories?

Optional: A Certain Magical Index, A Certain Magical Index SS, Toaru Kagaku no Railgun SS, A Certain Magical Index NT, A Certain Scientific Railgun: Astral Buddy, Souyaku Toaru Majutsu no Index.

How many chapters does A Certain Scientific Railgun have?

The main story is 180 chapters over 1 entry. With every optional entry it is 562 chapters.

Where can I read A Certain Scientific Railgun?

Officially on Kadocomi. Availability depends on your region; each entry below lists its own services.

Order and labels come from the relations in the AnimeHunt catalog (sequel, side story, summary, alternative version). Spot a mistake? Tell us.